From a8aea8578979486065b6e7e398f8c45480c5faea Mon Sep 17 00:00:00 2001
From: richterm <richterm@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 14 Mar 2007 10:29:36 +0000
Subject: [PATCH] moved from BASE to BASE/util

---
 HLT/BASE/util/AliHLTFilePublisher.h | 138 ++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 HLT/BASE/util/AliHLTFilePublisher.h

diff --git a/HLT/BASE/util/AliHLTFilePublisher.h b/HLT/BASE/util/AliHLTFilePublisher.h
new file mode 100644
index 00000000000..58964ffa3a3
--- /dev/null
+++ b/HLT/BASE/util/AliHLTFilePublisher.h
@@ -0,0 +1,138 @@
+// -*- Mode: C++ -*-
+// @(#) $Id$
+
+#ifndef ALIHLTFILEPUBLISHER_H
+#define ALIHLTFILEPUBLISHER_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice                               */
+
+/** @file   AliHLTFilePublisher.h
+    @author Matthias Richter
+    @date   
+    @brief  An HLT file publishing (data source) component.
+    @note   The class is used in Offline (AliRoot) context
+*/
+
+#include "AliHLTDataSource.h"
+#include <TList.h>
+
+/**
+ * @class AliHLTFilePublisher
+ * An HLT data source component which publishes data from one or a sequence
+ * of files.<br>
+ *
+ * Component ID: \b FilePublisher <br>
+ * Library: \b libHLTBase (in order to use the component from the external
+ * interface, it might be necessary to specify a dummy library with the
+ * \em -componentlibrary argument).
+ *
+ * Mandatory arguments: <br>
+ * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formating -->
+ * \li -datafile     <i> filename      </i>
+ * \li -datafilelist <i> file pattern  </i> <br>
+ *      not yet implemented
+ * \li -datatype     <i> datatype   dataorigin </i> <br>
+ *      data type ID and origin, e.g. <tt>-datatype CLUSTERS TPC </tt>
+ * \li -dataspec     <i> specification </i> <br>
+ *      data specification treated as decimal number or hex number if
+ *      prepended by '0x'
+ *
+ * Optional arguments:<br>
+ *
+ * The component needs at least one argument \em -datafile or \em -datafilelist.
+ * Both can occur multiple times. The \em -datatype and \em -dataspec
+ * parameters are valid for all files until the next occurrence of
+ * \em -datatype/spec
+ * @ingroup alihlt_component
+ */
+class AliHLTFilePublisher : public AliHLTDataSource  {
+ public:
+  /** standard constructor */
+  AliHLTFilePublisher();
+  /** not a valid copy constructor, defined according to effective C++ style */
+  AliHLTFilePublisher(const AliHLTFilePublisher&);
+  /** not a valid assignment op, but defined according to effective C++ style */
+  AliHLTFilePublisher& operator=(const AliHLTFilePublisher&);
+  /** destructor */
+  virtual ~AliHLTFilePublisher();
+
+  const char* GetComponentID();
+  AliHLTComponentDataType GetOutputDataType();
+  void GetOutputDataSize( unsigned long& constBase, double& inputMultiplier );
+  AliHLTComponent* Spawn();
+
+  /**
+   * Open all files.
+   * Opens all files from the file name list @ref fFileNames and adds TFile
+   * opjects to the TFiles list.
+   */
+  int OpenFiles();
+
+ protected:
+  /**
+   * Init method.
+   */
+  int DoInit( int argc, const char** argv );
+
+  /**
+   * Deinit method.
+   */
+  int DoDeinit();
+
+  /**
+   * Data processing method for the component.
+   * @param evtData       event data structure
+   * @param trigData	  trigger data structure
+   * @param outputPtr	  pointer to target buffer
+   * @param size	  <i>input</i>: size of target buffer
+   *            	  <i>output</i>:size of produced data
+   * @param outputBlocks  list to receive output block descriptors
+   * @return
+   */
+  int GetEvent( const AliHLTComponentEventData& evtData,
+		        AliHLTComponentTriggerData& trigData,
+		        AliHLTUInt8_t* outputPtr, 
+		        AliHLTUInt32_t& size,
+		        vector<AliHLTComponentBlockData>& outputBlocks );
+
+  /**
+   * Scan one argument and adjacent parameters.
+   * Can be overloaded by child classes in order to add additional arguments
+   * beyond the standard arguments of the file publisher. The method is called
+   * whenever a non-standard argument is recognized.
+   * @param argc           size of the argument array
+   * @param argv           agument array for component initialization
+   * @return number of processed members of the argv <br>
+   *         -EINVAL unknown argument <br>
+   *         -EPROTO parameter for argument missing <br>
+   */
+  virtual int ScanArgument(int argc, const char** argv);
+
+ protected:
+  /**
+   * Get the data type which is set for the current file
+   */
+  AliHLTComponentDataType GetCurrentDataType() const;
+
+  /**
+   * Get the data specification which is set for the current file
+   */
+  AliHLTUInt32_t          GetCurrentSpecification() const;
+  
+ private:
+  /** list of file names */
+  TList                   fFileNames;                              // see above
+  /** list of opened files */
+  TList                   fFiles;                                  // see above
+  /** current positions in the file list */
+  TObjLink*               fpCurrent;                               //! transient
+  /** data type */
+  AliHLTComponentDataType fDataType;                               // see above
+  /** data specification */
+  AliHLTUInt32_t          fSpecification;                          // see above
+  /** the maximum buffer size i.e. size of the biggest file */
+  Int_t                   fMaxSize;                                // see above
+
+  ClassDef(AliHLTFilePublisher, 0)
+};
+#endif
-- 
2.43.0